From Cppreference
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| struct defer_lock_t { };
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| (since C++11)
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| struct try_to_lock_t { };
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| (since C++11)
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| struct adopt_lock_t { };
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| (since C++11)
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std::defer_lock_t, std::try_to_lock_t and std::adopt_lock_t are empty struct tag types used to specify locking strategy.
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| Type
| Effect(s)
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| defer_lock_t
| do not acquire ownership of the mutex
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| try_to_t
| try to acquire ownership of the mutex without blocking
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| adopt_lock_t
| assume the calling thread already has ownership of the mutex
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[edit] Example
[edit] See also
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| tag constants used to specify locking strategy
(constant)
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